Oki Data CONFIDENTIAL
45850101TH Rev.1
2-32
2. TROUBLESHOOTING PROCEDURES
Panel display
Cause
Check details
Result
Solution
Inspection is
required.
166:Error xx
An abnormality
was detected
with the
power supply
temperature
thermistor.
01 : The power
supply thermistor
is detected as
shorted.
02 : The power
supply thermistor
is detected as
open.
03 : The power
supply thermistor
indicates high
temperature
error.
04 : The power
supply thermistor
indicates low
temperature
error.
01, 02:
Does this error recur?
Does this error recur?
Does this error recur?
03:
Does this error recur?
Does this error recur?
Does this error recur?
04:
Does this error recur?
Does this error recur?
Does this error recur?
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Cycle the power.
Replace the high voltage
power supply unit.
Replace the CU/PU board.
Replace the cable between
the high voltage power supply
unit and the CU/PU board.
Remove anything obstructing
the ventilation slots if any and
restore the power.
Replace the high voltage
power supply unit.
Replace the CU/PU board.
Replace the cable between
the high voltage power supply
unit and the CU/PU board.
Raise the room temperature
and restore the power.
Replace the high voltage
power supply unit.
Replace the CU/PU board.
Replace the cable between
the high voltage power supply
unit and the CU/PU board.
Inspection is
required.
167:Error
An abnormality
was detected
with the
thermistor.
Is the error message
displayed?
Does this error recur?
Yes
Yes
Cycle the power.
Replace the fuser unit.
Panel display
Cause
Check details
Result
Solution
Inspection is
required.
168:Error xx
An abnormality
was detected
with the
Compensation
Thermistor
01 : The
compensation
thermistor is
detected as
shorted.
02 : The
compensation
thermistor is
detected as
open.
03 : The
compensation
thermistor
indicates high
temperature
error.
04 : The
compensation
thermistor
indicates low
temperature
error.
Is the error message
displayed?
Does this error recur?
Yes
Yes
Cycle the power.
Replace the fuser unit.
Inspection is
required.
169:Error xx
An abnormality
was detected
with the Upper
side Thermistor
01 : The upper
side thermistor
is detected as
shorted.
02 : The upper
side thermistor
is detected as
open.
03 : The upper
side thermistor
indicates high
temperature
error.
04 : The upper
side thermistor
indicates low
temperature
error.
Is the error message
displayed?
Does this error recur?
Yes
Yes
Cycle the power.
Replace the fuser unit.